{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["DNA", "protein", "cell line", "cell type", "RNA"], "input": "The 1311-base pair human tumor necrosis factor (TNF) alpha promoter region was fused to the luciferase (Luc) reporter gene and studied in a transient transfection system in three TNF producing cell lines , the U937 macrophage cell line , the MLA 144 T cell line , and the 729-6 B cell line ."}
{"DNA": ["1311-base pair human tumor necrosis factor (TNF) alpha promoter region", "luciferase (Luc) reporter gene"], "protein": [], "cell line": ["TNF producing cell lines", "U937 macrophage cell line", "MLA 144 T cell line", "729-6 B cell line"], "cell type": [], "RNA": []}